Cooling apparatus for paint-mills



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' OUOLING APPARATUS FOR PAINT MILLS. No. 295,626. Patented Mar. 25.1884.

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. No. 295,626. Patented Ma '25, 1884,.

UNITED STATES PATENT OFFIC L. EUGENE FULLER AND JOSEPH H.

MAGAULEY, or CHICAGO, ILLINOIS.

COOLING APPARATUS FOR PAINT-MILLS.

SPECIFICATION forming part of Letters Patent No. 295,626, dated March25, 1884.

Application filed October 8, 1883. (No model.)

To aZZ whom, it may concern Be it known that we, L. EUGENE FULLER andJosEPH H. MAOAULEY, citizens of the United States, residing at Chicago,in the county of Cook and State of Illinois, have invented certain newand useful Improvements in Cooling Apparatus for Paint-M ills, of whichthe following is a specification, to wit:

This invention relates to an improvement in cooling apparatus forpaint-mills and it con sists in the peculiar construction andarrangement of the same, whereby thewater for cooling the upper stone ispassed directly to the lower stone and cools it before being carried offby the waste-pipe, while at the same time the proper adjustment of thestones with reference to each other is not impeded, substantially aswill be hereinafter more fully described, andpointed out in the claims.

In order to enable others skilled in the art to which our inventionappertains to make and use the same, we will now proceed to describe itsconstruction and operation, referring ing-shaft, A",

to the accompanying drawings, in which- Figurel is a central verticalsection of the two stones and their cases and the main connectingportions of a paint-mill. Fig. 2 is a plan view of the upper case; Fig.3, a similar view of the lower case with the stone removed. Fig. 4 is avertical section of the pipes con necting the upper and lower cases.Fig. 5 re presents the coupling at the lower end of these pipes; andFig. 6 is aside elevationof apaintmill, showing the relative positionsof differentparts of our invention.

.A represents the main frame of a paint-mill, provided withthe usualmixer, A, and a drivgiving motion in the usual way by suitable gearingboth to the mixer and to the lower stone of the mill.

Upon the main frame, in a suitable position with reference to the otherparts, is supported the case B, ofcylindrical form, in which is securedthe upper or stationary stone, B, which does not quite fill the case,but a small space is left between the top and sides of the stone Belowthe upper stationary stone, B, is arranged the runningstone 0, also setin a case, 0, which incloses the stone, both inside and out, with aspace, 0, for the circulation of water, as already described. Thecent-er of the case 0 forms a covered chamber, C ,'which rises throughthe center of the stone 0, as fully represented in Fig. 1.

Formed with or attached to the bottom of the case 0 is thesupporting-spindle D, having its upper end formed hollow for a shortdistance, and opening into the water-chamber 0 through a pipe, D,extending up through this chamber, and having its upper end perforated,as seen at d. The hollow spindle is also provided with a series ofhorizontal tubes,d, passing through the water-chamber and opening intothe space 0 under the stoneG.

Below the case G in the main frame of the mill is arranged a plate, E,through which the spindle D passes, which plate is formed with a coredpassage, 6, the outer end of which may be connected in any suitablemanner with a waste-pipe for carrying off the water, and its inner endterminates in a circular chamber, e, which is in communication with thehollow spindle D by means of a hole, d in its side.

To allow of the vertical adjustment of the lower stone and its case, itis necessary to make a sliding connection between the pipes F F, and weaccomplish this in the following manner, as clearly represented in Fig.4:: The upper end of the short section F is formed with a flange, f, andis free to move in a cylindrical chamber, f, in the union or coupling F.This coupling is attached to the end of the pipe F by a screw-plug, fand to its lower end is secured a stuffing-box, f surrounding thesection F and is formed with an extensiom'f, which extends downwardaround the short pipe-section a short distance, and protects it fromcontact with the paint or varnish, which might prevent its free movementin the coup- 1ing. The lower end of the section F is provided with asocket, G, formed with interior inclined sockets, g g, and the top ofthe waterchamber 0 is provided with anipple, G, havmg two wedge-shapedprojections, which enter the socket G, and are firmly locked there inwhen the nipple is turned by being forced up in the sockets g g, as willbe understood by reference to Figs. at and 5. Ihe spindle of therunning-stone is stepped in a lever, H, having an adjusting-screw, H, asshown in Fig. 6, by which means this stone is raised or lowered in theordinary way.

In operation, the water is forced into the upper case under pressure,and, passing entirely around it, is passed into the chamber}? throughthe pipes F F and-their adjustable coupling. After circulating aroundthe lower stone, 0, the water is passed off through the pipes d, hollowspindle D, and cored plate E. During this operation the chamber Cbecomes filled, and the water entering here has time to cool before itis forced around the lower stone and passed off, as described.

While we prefer to use water under pressure, it may also be used withoutthe pressure,

and in that case the ends of the tubes d are plugged up through openingsin the side of the case made for that purpose, and the water exhaustedfrom the chamber 0 through the overflow-pipe in the upper end of thehollow spindle. It will be observed that by this arrangement the waterused for cooling the upper stone is passed to the lower one beforeexhausting, thus saving a great amount, and at the same time the properrelative adjustment of the stones and the removal of the lower one forrepairs, 850., is not interfered with, the sliding union allowing thesection F to have a vertical as well as a revolving motion, and theflange preventing its accidentalwithdrawal through the packing-box.

Having thus fully described our invention, what we claim as new,,anddesire to secure by Letters Patent, is-

1. In a paint-mill, the running-stone 0, casing 0, having acirculating-space around the stone, and the hollow spindle D, incombination with the plate E, through which the spindle passes, formedwith the cored passage 6 and chamber 6, substantially as, shown anddescribed.

2. In a paint-mill, the runningstone (l and its case O,. formed with acirculating-space around the stone, and with the receptacle 0*, incombination with the hollow spindle D, pipes d, and extension D, formedwith perforations d, substantially as and for the purpose set forth.

3. In a paint-mill, the stationary stone B, its case B, having acirculating-space, b, and the partition I)", the supply-pipe F,connected on one side of said partition, and the pipe F upon the other,the coupling F and section F in combination with the coupling G, chamberC case 0, stone 0, and hollow spindle D, all constructed and arranged tooperate substantiallyas and for the purpose set forth.

In testimony whereof we have hereunto set our hands in the presence oftwo witnesses.

In presence of- A. O. J AMES, FRANK E. REED.

